[BLE] Random disconnects / flickers

[ndekross]

Keyboard disconnects after some time of use. In bluetooth device settings, keyboard flickers on/off (see video below) and the LED display shows it as disconnected. Windows 11 and firmware 12.3.1. The only remedy is to remove the device and reconnect.

Recording.2025-01-18.104912.mp4

[mondalaci]

Does this happen after a specific even, such as waking up your PC?

#1056 may be related.

[ndekross]

Does this happen after a specific even, such as waking up your PC?

I think, last time it happened after fully charging and removing the USB-C cables.

[ndekross]

This actually happened again just now, after a wake up.

[mondalaci]

@kareltucek Do you think it's a c2usb issue?

[kareltucek]

2:1 that it is a charger.c (i.e., my bug) which c2usb just forwards over ble

[michaeldesu]

I've noticed the same issue after powering on my laptop - I'm using firmware 12.3.2. I can't remove the device either via Windows bluetooth manager.. I suspect I need to reset the keyboard..

[mondalaci]

I've managed to reproduce the issue in #1056 (comment)

We'll make #1056 a priority, but it's currently not the highest priority issue.